In no particular order:
  • how to deal with women as a man,
  • how to use money for wealth building,
  • how to become invisible in the internet,
  • how to raise kids the right way as a father,
  • how do governments work and how to "lay low",
  • how to learn on one's own,
  • how to defend oneself and close ones,
  • how to survive in the woods,
  • how t make money online,
  • how to properly nourish oneself,
The list can go on and on... schools are basically worthless. We only use like 5% of the knowledge from schools...